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-rw-r--r--proto/ospf/rt.c122
1 files changed, 94 insertions, 28 deletions
diff --git a/proto/ospf/rt.c b/proto/ospf/rt.c
index 86379e4..8a7f17c 100644
--- a/proto/ospf/rt.c
+++ b/proto/ospf/rt.c
@@ -8,8 +8,6 @@
#include "ospf.h"
-#define LOCAL_DEBUG
-
void
init_infib(struct fib_node *fn)
{
@@ -57,12 +55,16 @@ ospf_rt_spfa(struct ospf_area *oa)
en->color=OUTSPF;
en->dist=LSINFINITY;
en->nhi=NULL;
+ en->nh=ipa_from_u32(0);
+ DBG("Infinitying Type: %u, Id: %I, Rt: %I\n", en->lsa.type, en->lsa.id,
+ en->lsa.rt);
}
FIB_WALK(in,nftmp)
{
nf=(struct infib *)nftmp;
nf->metric=LSINFINITY;
+ nf->en=NULL;
}
FIB_WALK_END;
@@ -109,16 +111,22 @@ ospf_rt_spfa(struct ospf_area *oa)
nf=fib_get(in,&ip, ipa_mklen(ipa_from_u32(rtl->data)));
if(nf->metric>(met=act->dist+rtl->metric))
{
+ DBG(" Adding stub route....\n");
+ if(oa->rt==act) break;
+ if(act->nhi==NULL) break;
nf->metric=met;
nf->en=act;
+ DBG(" Adding stub route: %I\n",ip);
+ DBG(" Next hop=%I\n",nf->en->nh);
}
+ else DBG(" NOT adding stub route: %I\n",ip);
break;
case LSART_VLNK:
DBG("Ignoring\n");
continue;
break;
case LSART_NET:
- tmp=ospf_hash_find(oa->gr,rtl->id,rtl->id,LSA_T_NET);
+ tmp=ospf_hash_find(oa->gr,rtl->data,rtl->id,LSA_T_NET);
if(tmp==NULL) DBG("Fuck!\n");
else DBG("Found. :-)\n");
break;
@@ -130,10 +138,12 @@ ospf_rt_spfa(struct ospf_area *oa)
log("Unknown link type in router lsa.");
break;
}
+ if(tmp) DBG("Going to add cand, Mydist: %u, Req: %u\n",
+ tmp->dist, act->dist+rtl->metric);
add_cand(&oa->cand,tmp,act,act->dist+rtl->metric,oa);
}
break;
- case LSA_T_NET: /* FIXME Add to fib */
+ case LSA_T_NET:
ln=act->lsa_body;
ip=ipa_and(ipa_from_u32(act->lsa.id),ln->netmask);
nf=fib_get(in,&ip, ipa_mklen(ln->netmask));
@@ -141,13 +151,13 @@ ospf_rt_spfa(struct ospf_area *oa)
{
nf->metric=act->dist;
nf->en=act;
+ DBG(" Adding into routing table\n");
}
-
rts=(u32 *)(ln+1);
for(i=0;i<(act->lsa.length-sizeof(struct ospf_lsa_header)-
sizeof(struct ospf_lsa_net))/sizeof(u32);i++)
{
- DBG(" Working on router %I ",*(rts+i));
+ DBG(" Working on router %I ", *(rts+i));
tmp=ospf_hash_find(oa->gr, *(rts+i), *(rts+i), LSA_T_RT);
if(tmp!=NULL) DBG("Found :-)\n");
else DBG("Fuck!\n");
@@ -170,8 +180,9 @@ again:
ln=en->lsa_body;
ne=net_get(p->table, nf->fn.prefix, nf->fn.pxlen);
- DBG("Deleting rt entry %I\n (IP: %I, GW: %I, Iface: %s)\n",
- nf->fn.prefix,ip,en->nh,en->nhi->name);
+ if((en!=NULL)&&(en->nhi!=NULL))
+ DBG("Deleting rt entry %I\n (P: %x, GW: %I, Iface: %s)\n",
+ nf->fn.prefix, en, en->nh,en->nhi->name);
rte_update(p->table, ne, p, NULL);
/* Now delete my fib */
@@ -211,12 +222,12 @@ again:
a0.source=RTS_OSPF;
a0.scope=SCOPE_UNIVERSE; /* What's this good for? */
a0.cast=RTC_UNICAST;
- a0.dest=RTD_ROUTER;
+ if(ipa_to_u32(en->nh)==0) a0.dest=RTD_DEVICE;
+ else a0.dest=RTD_ROUTER;
a0.flags=0;
a0.aflags=0;
a0.iface=en->nhi;
a0.gw=en->nh;
- a0.from=en->nh; /* FIXME Just a test */
ne=net_get(p->table, nf->fn.prefix, nf->fn.pxlen);
e=rte_get_temp(&a0);
e->u.ospf.metric1=nf->metric;
@@ -225,8 +236,8 @@ again:
e->pflags = 0;
e->net=ne;
e->pref = p->preference;
- DBG("Modifying rt entry %I\n (IP: %I, GW: %I, Iface: %s)\n",
- nf->fn.prefix,ip,en->nh,en->nhi->name);
+ DBG("Modifying rt entry %I\n (GW: %I, Iface: %s)\n",
+ nf->fn.prefix,en->nh,en->nhi->name);
rte_update(p->table, ne, p, e);
}
}
@@ -282,6 +293,9 @@ ospf_ext_spfa(struct proto_ospf *po) /* FIXME looking into inter-area */
le=en->lsa_body;
lt=(struct ospf_lsa_ext_tos *)(le+1);
+ DBG("%s: Working on LSA. ID: %I, RT: %I, Type: %u, Mask %I\n",
+ p->name,en->lsa.id,en->lsa.rt,en->lsa.type,le->netmask);
+
if(lt->metric==LSINFINITY) continue;
ip=ipa_and(ipa_from_u32(en->lsa.id),le->netmask);
mlen=ipa_mklen(le->netmask);
@@ -296,11 +310,10 @@ ospf_ext_spfa(struct proto_ospf *po) /* FIXME looking into inter-area */
WALK_LIST(atmp,po->area_list)
{
- if((nf=fib_find(&atmp->infib,&ip, mlen))!=NULL) break;
+ if((nf=fib_find(&atmp->infib,&ip, mlen))!=NULL) continue;
+ /* Some intra area path exists */
}
- if(nf!=NULL) continue; /* Some intra area path exists */
-
absr=NULL;
absroa=NULL;
nnhi=NULL;
@@ -320,7 +333,11 @@ ospf_ext_spfa(struct proto_ospf *po) /* FIXME looking into inter-area */
}
}
}
- if((absr==NULL)||(absr->dist==LSINFINITY)) continue;
+ if((absr==NULL)||(absr->dist==LSINFINITY))
+ {
+ DBG("ABSR is null or its dist=INF\n");
+ continue;
+ }
if(ipa_compare(lt->fwaddr,ipa_from_u32(0))==0)
{
@@ -346,7 +363,13 @@ ospf_ext_spfa(struct proto_ospf *po) /* FIXME looking into inter-area */
break;
}
}
- if(nf==NULL) continue;
+
+ if(nf==NULL)
+ {
+ DBG("Cannot find network route (GW=%I\n",lt->fwaddr);
+ continue;
+ }
+
if(lt->etos>0)
{
met=nf->metric;
@@ -385,6 +408,7 @@ ospf_ext_spfa(struct proto_ospf *po) /* FIXME looking into inter-area */
if((neigh=find_neigh_noifa(po,absr->lsa.rt))==NULL)
{
+ DBG("Cannot find neighbor\n");
continue;
}
nn=neigh_find(p,&neigh->ip,0);
@@ -438,7 +462,6 @@ noch:
a0.aflags=0;
a0.iface=nf->nhi;
a0.gw=nf->nh;
- a0.from=nf->nh; /* FIXME Just a test */
ne=net_get(p->table, nf->fn.prefix, nf->fn.pxlen);
e=rte_get_temp(&a0);
e->u.ospf.metric1=nf->metric;
@@ -526,22 +549,65 @@ calc_next_hop(struct top_hash_entry *par, struct top_hash_entry *en,
struct ospf_neighbor *neigh;
struct proto *p=&oa->po->proto;
struct proto_ospf *po=oa->po;
+ struct ospf_iface *ifa;
DBG(" Next hop called\n");
- if(par==oa->rt) return;
- if(par->nhi==NULL)
+ if(ipa_to_u32(par->nh)==0)
{
neighbor *nn;
DBG(" Next hop calculating for id: %I rt: %I type: %u\n",en->lsa.id,en->lsa.rt,en->lsa.type);
- if(par->lsa.type!=LSA_T_RT) return;
- if((neigh=find_neigh_noifa(po,par->lsa.rt))==NULL) return;
- nn=neigh_find(p,&neigh->ip,0);
- DBG(" Next hop calculated: %I\n", nn->addr);
- en->nh=nn->addr;
- en->nhi=nn->iface;
- return;
+ if(par->lsa.type!=LSA_T_RT)
+ {
+ if((neigh=find_neigh_noifa(po,par->lsa.rt))==NULL) return;
+ nn=neigh_find(p,&neigh->ip,0);
+ DBG(" Next hop calculated: %I.\n", nn->addr);
+ en->nh=nn->addr;
+ en->nhi=nn->iface;
+ return;
+ }
+ else
+ {
+ if(par==oa->rt)
+ {
+ if(en->lsa.type==LSA_T_NET)
+ {
+ struct ospf_lsa_net *ne;
+ ne=en->lsa_body;
+
+ DBG("I'm parent (Net=%I)\n",(en->lsa.id & ipa_to_u32(ne->netmask)));
+
+ WALK_LIST(ifa, oa->po->iface_list)
+ {
+ if(ipa_to_u32(ipa_and(ifa->iface->addr->ip,
+ ipa_mkmask(ifa->iface->addr->pxlen))) ==
+ (en->lsa.id & ipa_to_u32(ne->netmask)))
+ {
+ en->nhi=ifa->iface;
+ en->nh=ipa_from_u32(0);
+ DBG("Ifa: %s\n",en->nhi->name);
+ return;
+ }
+ }
+ }
+ else
+ {
+ if((neigh=find_neigh_noifa(po,par->lsa.rt))==NULL) return;
+ nn=neigh_find(p,&neigh->ip,0);
+ en->nh=ipa_from_u32(0);
+ en->nhi=nn->iface;
+ }
+ return;
+ }
+
+ if((neigh=find_neigh_noifa(po,par->lsa.rt))==NULL) return;
+ nn=neigh_find(p,&neigh->ip,0);
+ DBG(" Next hop calculated: %I\n", nn->addr);
+ en->nh=nn->addr;
+ en->nhi=nn->iface;
+ return;
+ }
}
en->nh=par->nh;
en->nhi=par->nhi;
- DBG(" Next hop calculated: %I\n", en->nh);
+ DBG(" Next hop calculated: %I..\n", en->nh);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 03:56:02 +0100